关于mjpg_streamer的一个问题

ityama

昨天我花了很长时间终于搞定了Openwrt挂载摄像头了。可是今天我发现了一个问题，如果我是用有线口连去路由器访问mjpg_streamer服务时，一切都是很正常的。但是如果换成无线连去路由器访问mjpg_streamer时，很快服务就会自动关闭。下面是我的测试信息。
root@OpenWrt:~# mjpg_streamer -i "input_uvc.so -r 640x480 -f 30" -o "output_http
.so -p 8080 -w /www/webcam"
MJPG Streamer Version: svn rev: exported
i: Using V4L2 device.: /dev/video0
i: Desired Resolution: 640 x 480
i: Frames Per Second.: 30
i: Format............: MJPEG
Adding control for Pan (relative)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Tilt (relative)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Pan Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Tilt Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Pan/tilt Reset
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
Adding control for Focus (absolute)
UVCIOC_CTRL_ADD - Error: Inappropriate ioctl for device
mapping control for Pan (relative)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Tilt (relative)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Pan Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Tilt Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Pan/tilt Reset
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Focus (absolute)
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for LED1 Mode
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for LED1 Frequency
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Disable video processing
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
mapping control for Raw bits per pixel
UVCIOC_CTRL_MAP - Error: Inappropriate ioctl for device
o: www-folder-path...: /www/webcam/
o: HTTP TCP port.....: 8080
o: username:password.: disabled
o: commands..........: enabled
Unable to dequeue buffer: Input/output error
i: Error grabbing frames

我觉得后面的这两句应该是重点。。
Unable to dequeue buffer: Input/output error
i: Error grabbing frames

捕获错误，有没有方法解决。为什么用有线访问没有这问题，但是无线就会出现呢。